body { 
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333; 
}

header {
    background-color: #3498db;
    color: #fff;
    padding: 1em 0;
    text-align: center;
}

header h1 {
    margin: 0;
}

header .logo {
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    user-select: none;
}

header nav a {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    border: 1px solid transparent;
    padding: 6px 12px;
    border-radius: 4px;
    transition: background-color 0.3s, border-color 0.3s;
}

header nav a:hover {
    background-color: rgba(255, 255, 255, 0.3);
    border-color: #fff;
}

main {
    padding: 20px;
    max-width: 800px;
    margin: 20px auto;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.container {
    max-width: 800px;
    margin: auto;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.container p {
    text-align: center;
}

h1 { 
    text-align: center; 
    margin-bottom: 20px; 
}

.description { 
    margin: 20px 0; 
    text-align: center;
}

.directory a {
    display: block;
    margin: 5px 0;
    text-decoration: none;
    color: #333;
    text-align: center;
}

.start {
    display: block;
    text-align: center;
    margin: 20px 0;
}

.start a {
    padding: 10px 20px;
    background: #007BFF;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
}

.start a:hover {
    background: #0056b3;
}

h2 {
    text-align: center;
}

footer {
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    background-color: #3498db;
    color: #fff;
    font-size: 0.9em;
}